alison grace martin: pink polyhedra
alison grace martin: variation at vertices
alison grace martin: Buckyballs and nanotubes
alison grace martin: start slicing
alison grace martin: Right angled triangle
alison grace martin: Right angled triangles. 8 triangles can cover a sphere
alison grace martin: Right angles
alison grace martin: double torus
alison grace martin: planar mesh
alison grace martin: saddle shape
alison grace martin: elusive 5-vertex tilings
alison grace martin: icosahedral virus structure
alison grace martin: weaving a node